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Table 2 Amino acids frequency and distribution in cleavage sites of signal peptide of secretory proteins

From: The prediction of a pathogenesis-related secretome of Puccinia helianthi through high-throughput transcriptome analysis

Kinds of aa

20 amino acid residues at the cleavage position from - 3 to + 3 of the signal peptides

−3

−2

−1

+1

+2

+3

No.

Percentage (%)

No.

Percentage (%)

No.

Percentage (%)

No.

Percentage (%)

No.

Percentage (%)

No.

Percentage (%)

V

242

26.7

34

3.7

3

0.3

50

5.5

34

3.7

72

7.9

A

147

16.2

40

4.4

446

49.1

94

10.4

18

2.0

53

5.8

S

135

14.9

150

16.5

148

16.3

96

10.6

97

10.7

72

7.9

T

103

11.3

42

4.6

47

5.2

44

4.8

57

6.3

68

7.5

I

81

8.9

27

3.0

1

0.1

30

3.3

36

4.0

76

8.4

C

72

7.9

14

1.5

70

7.7

15

1.7

22

2.4

43

4.7

L

45

5.0

137

15.1

18

2.0

84

9.3

59

6.5

89

9.8

G

34

3.7

9

1.0

123

13.5

33

3.6

29

3.2

36

4.0

F

6

0.7

53

5.8

3

0.3

30

3.3

25

2.8

35

3.9

H

6

0.7

48

5.3

0

0.0

33

3.6

22

2.4

24

2.6

R

6

0.7

26

2.9

6

0.7

41

4.5

34

3.7

13

1.4

K

6

0.7

24

2.6

0

0.0

30

3.3

50

5.5

38

4.2

N

5

0.6

57

6.3

3

0.3

40

4.4

60

6.6

49

5.4

E

5

0.6

77

8.5

5

0.6

66

7.3

86

9.5

39

4.3

M

4

0.4

15

1.7

4

0.4

11

1.2

4

0.4

12

1.3

Y

4

0.4

31

3.4

0

0.0

26

2.9

18

2.0

16

1.8

Q

3

0.3

73

8.0

10

1.1

117

12.9

42

4.6

45

5.0

W

2

0.2

15

1.7

3

0.3

3

0.3

4

0.4

13

1.4

D

1

0.1

31

3.4

5

0.6

58

6.4

59

6.5

43

4.7

P

1

0.1

5

0.6

13

1.4

7

0.8

152

16.7

72

7.9